has role is protonated form of digoxin(1-) antiviral agent antiinfective agent antidepressant analgesic hypoglycemic agent cardiovascular drug antineoplastic agent anticonvulsant antihypertensive agent antirheumatic drug anti-arrhythmia drug cardenolide glycoside cardiotonic drug digoxin A cardenolide glycoside that is digitoxin β-hydroxylated at C-12. A cardiac glycoside extracted from the foxglove plant, <em>Digitalis lanata</em>, it is used to control ventricular rate in atrial fibrillation and in the management of congestive heart failure with atrial fibrillation, but the margin between toxic and therapeutic doses is small. organic molecular entity antiemetic epitope steroid saponin EC 3.6.3.9 (Na(+)/K(+)-transporting ATPase) inhibitor anti-HIV agent anti-HBV agent anti-inflammatory agent anti-obesity agent